Home / 612,889.82-919,334.73-192,198.50

Finding the Fourth Proportional to 612,889.82, 919,334.73 and 192,198.50

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Solution

The fourth proportional to 612,889.82, 919,334.73 and 192,198.50 is: 288,297.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,889.82 : 919,334.73 = 192,198.50 : x
  2. Step 2: Convert to fraction form
    612,889.82/919,334.73 = 192,198.50/x
  3. Step 3: Cross multiply
    612,889.82x = 919,334.73 × 192,198.50
  4. Step 4: Simplify right side
    612,889.82x = 176,694,756,103.91
  5. Step 5: Solve for x
    x = 176,694,756,103.91/612,889.82
  6. Step 6: Final answer
    x = 288,297.75

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.